/*
0 a 59
1 b 60
2 c 61
3 d 62
4 e 63
5 f 63
6 g 63
7 h 63
8 i 63
9 j 63
*/
#include <stdio.h>
struct student {
      int num;
      char name[20];
      int score;
  }; 
struct student stud[10];

int main(void)
{  
   int i, sum = 0 ;
   for(i = 0; i < 10; i++){
      scanf("%d%s%d", &stud[i].num, 
stud[i].name
 , &stud[i].score);
      sum += stud[i].score;
  }
  printf("aver=%d\n", sum/10);

  return 0;
}